(9) Wilson, K. W., Doyle, G. J., “Investigation of Photochemical Reactivities of Organic Solvents”, Stanford Research Institute Project PSU-8029, Irvine, Calif., September 1970; distributed by National Technical Information Service, U S . Department of Commerce, Springfield, Va. (10) McConnell, G., Ferguson, D. M., Pearson, C. R., Endeavour, 34,13-18 (1975). (11) Altshuller, A. P., Bufalini, J . J., Environ. Sei. Technol., 5, 39-64 (1971). (12) Schuck, E. A,, Doyle, G. J., “Photooxidation of Hydrocarbons in Mixtures Containing Oxides of Nitrogen and Sulfur Dioxide”, Report No. 29, Air Pollution Foundation, San Marino, Calif., October 1959. (13) Hamming, W. J., “Photochemical Reactivity of Solvents”, paper presented a t Aeronautic and Space Engineering and Manufacturing Meeting, Society of Automotive Engineers, Los Angeles, Calif., October 2-6, 1967. (14) Wilson, K. W., “Photoreactivity of Trichloroethylene”, Summary Report for Manufacturing Chemists Association on SRI Project PSC-6687, Stanford Research Institute, South Pasadena, Calif., September 1969. (15) Wilson, K. W., Doyle, G. J., Hansen, D. A., Englert, R. D., A m . Chem. Soc., Diu. of Org. Coat. and Plast. Chem. Preprints, 29, No. 2,445-9 (1969). (16) Wilson, K. W., Doyle, G. J., Hansen, D. A,, Englert, R. D., “Photochemical Reactivity of Organic Solvents”, Technical Report to Manufacturing Chemists Association, Stanford Research Institute, South Pasadena, Calif., September 1969. (17) Wilson, D. W., Doyle, G. J., Hansen, D. A., Englert, R. D., “Photochemical Reactivity of Trichloroethylene and Other Solvents”, paper presented a t 158th American Chemical Society National Meeting, New York, N.Y., September 7-12, 1969; Abstracts of Papers, ORPL 38.
(18) Altshuller, A. P., Klosterman, D. L., Leach, P. W., Hindawi, I. J., Sigsby, J . E., Jr., Znt. J . Air Water Pollut., IO, 81-98 (1966). (19) Bufalini, J. J., Altshuller, A. P., Enuiron. Sci. Technol., 1, 133-8 (1967). (20) Koller, L. R., “Ultraviolet Radiation”, 2d ed., p p 46-9, John Wiley & Sons, Inc., New York, N.Y., 1965. (21) Byers, D. H., Saltzman, B. E., “Ozone Chemistry and Technology”, Advan. Chern. Ser., No. 21, pp 93-101, American Chemical Society, Washington, D.C., 1959. (22) Poutsma, M. L., Hinman, R. L., J. A m . Chem. Soc., 86, 3807-14 (1964). (23) Jeffrey, G. C., Dow Chemical Co., Freeport, Tex., private communication, 1967. (24) Dilling, W. L., Tefertiller, N. B., submitted for publication. (25) Altshuller, A. P., Cohen, I. R., Purcell, T. C., Science, 156, 937-9 (1967). Received for review April 23, 1975. Accepted October 28, 1975. Part of this work was presented at the 8th ACS Great Lakes Regional Meeting, West Lafayette, Ind., J u n e 3-5, 1974, Abstracts ORGN 176. Supplementary Material Available. Six figures, six tables, and a n appendix, a total of 13 pages, will appear following these pages in the microfilm edition of this volume of the journal. Photocopies of the supplementary material from this paper only or microfiche (105 X 148 m m , 24X reduction, negatives) which contains all of the supplementary material for the papers in this issue may be obtained from Business Operations, Books and Journals Division, American Chemical Society, 1155 16th St., N . W., Washington, D.C. 20036. Remit check or money order for $5.00 for photocopy or $2.50 for microfiche, referring to code n u m ber ES&T-76-351.
Toxicity of Organic and Inorganic Arsenicals to an Insect Herbivore Annetta P. Watson*, Robert 1. Van Hook, and David E. Reichle Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tenn. 37830
Four arsenicals including organic and inorganic forms of both the trivalent and pentavalent states were tested for their potential environmental effect on a nontarget animal species. Cacodylic acid, cacodylic acid plus sodium cacodylate, arsenic trioxide, and arsenic pentoxide were evaluated in terms of formulation, exposure time, and tissue arsenic concentrations on the survival of an exposed population of meadow katydids. Tissue concentrations of elemental arsenic were higher for organic forms than for inorganic forms a t similar exposure dosages. Life expectancies were reduced to
